//1.引入express
const { response } = require("express");
const express = require("express");

//2.创建应用对象
const app = express();

//3.创建路由规则
//request是对请求报文的封装
//response是对响应报文的封装
app.get("/",(request,response)=>{
    //设置响应
    response.send("hello express");
});

//4.监听端口
app.listen(8000,()=>{
    console.log("服务已经启动，8000端口监听中……");
})